Evan Sims, a recent convert from Flickr to SmugMug, has whipped up a little something to help make getting to those SmugMug unfriendly URLs a little bit easier - SmugUrl:

one aspect I didn't like was their URL scheme. They have good reasons for doing it, and I can't fault them for trying to maintain the privacy and security of their users. Heck, I applaud them for it. Still, I like my URLs pretty, and more importantly search engine friendly. So, I decided to take matters into my own hands and build SmugURL.